نتایج جستجو برای: grain yield and biomass

تعداد نتایج: 16857822  

Journal: :کشاورزی (منتشر نمی شود) 0
داود افیونی عضو هیئت علمی مرکز تحقیقات کشاورزی و منابع طبیعی استان اصفهان، اصفهان - ایران‏

effects of five seeding rates (350, 425, 500, 575 and 650 seeds per m2) on four wheat cultivars (kavir, mahdavi, shiraz and roshan) were studied under salinity stress, during 2000-2001 crop seasons in roodasht agricultural research station, esfahan. a factorial experiment based on randomized complete block design with three replications was used. plants were irrigated with saline water (with ec...

Extended Abstract Introduction and Objective: Due to the very high diversity among the genotypes of quinoa (Chenopodium quinoa), it has shown a very high adaptability and stability in different climates. Therefore, this experiment was performed to investigate the morphological and genetic diversity of 14 quinoa genotypes and compare them with the control genotype of the region (Titicaca). Ma...

Journal: :علوم گیاهان زراعی ایران 0
الهه کمالی دانشکده کشاورزی دانشگاه زابل زمان شاه محمدی حیدری دانشکده کشاورزی دانشگاه زابل مصطفی حیدری دانشکده کشاورزی دانشگاه زابل محمد فیضی مرکز تحقیقات کشاورزی و منابع طبیعی اصفهان

in order to study the effects of irrigation water salinity and leaching fraction on soil chemical characteristic, grain yield, yield components and sodium and potassium contents in leaves of safflower, an experiment was coducted in a split plot design with four replications in 2009 at roudasht, isfahan. treatments included three irrigation water salinities of q1=3.35, q2=8.77 and q3=11.21 ds/m ...

2014
Ayako Okuno Ko Hirano Kenji Asano Wakana Takase Reiko Masuda Yoichi Morinaka Miyako Ueguchi-Tanaka Hidemi Kitano Makoto Matsuoka

Traditional breeding for high-yielding rice has been dependent on the widespread use of fertilizers and the cultivation of gibberellin (GA)-deficient semi-dwarf varieties. The use of semi-dwarf plants facilitates high grain yield since these varieties possess high levels of lodging resistance, and thus could support the high grain weight. Although this approach has been successful in increasing...

2015
Dil Thavarajah Pushparajah Thavarajah Eric Vial Mary Gebhardt Craig Lacher Shiv Kumar Gerald F. Combs

Lentil (Lens culinaris Medik), a nutritious traditional pulse crop, has been experiencing a declining area of production in South East Asia, due to lower yields, and marginal soils. The objective of this study was to determine whether selenium (Se) fertilization can increase lentil yield, productivity, and seed quality (both seed Se concentration and speciation). Selenium was provided to five l...

2017
Jurka Lesjak Daniel F. Calderini

Quinoa high nutritive value increases interest worldwide, especially as a crop that could potentially feature in different cropping systems, however, climate change, particularly rising temperatures, challenges this and other crop species. Currently, only limited knowledge exists regarding the grain yield and other key traits response to higher temperatures of this crop, especially to increased...

2016
Lilian Wu Shen Yuan Liying Huang Fan Sun Guanglong Zhu Guohui Li Shah Fahad Shaobing Peng Fei Wang

Selecting rice varieties with a high nitrogen (N) use efficiency (NUE) is the best approach to reduce N fertilizer application in rice production and is one of the objectives of the Green Super Rice (GSR) Project in China. However, the performance of elite candidate GSR varieties under low N supply remains unclear. In the present study, differences in the grain yield and NUE of 13 and 14 candid...

2008

We quantitatively evaluated the effects of elevated concentration of ozone (O3) on growth, leaf chemistry, gas exchange, grain yield, and grain quality relative to carbonfiltered air (CF) by means of meta-analysis of published data. Our database consisted of 53 peer-reviewed studies published between 1980 and 2007, taking into account wheat type, O3 fumigation method, rooting environment, O3 co...

Journal: :iran agricultural research 2015
s. a. kazemeini m. a. m. a. ehsanjoo r. moradi talebbeigi h. h. sadeghi

abstract- crop residue is applied to amend soil properties and increase crop yield. in this study, the effects of rapeseed residues and different rates of nitrogen on grain yield and yield components of sunflower and weed dry matter were investigated. the experiment was conducted at the experimental farm of college of agriculture, shiraz university, located at badjgah, shiraz, iran in 2007-2008...

ژورنال: علوم آب و خاک 2005
سید علی‌محمد میر‌محمدی‌میبدی, , عبدالمجید رضائی, , حسین صبوری, , مسعود اصفهانی, ,

An experiment was conducted at Rasht Rice Research Institute, in 2001 to study trait relationships and to determine the direct and indirect effects of different characteristics on grain yield of rice (Orgza sativa L.). A 9x2 factorial experiment in complete randomized block design with 3 replications was used. The two factors were 9 cultivars, namely: Hashemi, Ali Kazemi, Binam, Sepeedroud, Nem...

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